MSC8113 Reference Manual, Rev. 0
25-14
Freescale Semiconductor
Ethernet Controller
25.6.1.2 MII Receive Flow
The Ethernet controller samples the receive data valid (
ETHRX_DV
), receive data bus
(
ETHRXD[3–0]
) and receive error (
ETHRX_ER
) input signals at the rising edge of the receive clock
(
ETHRX_CLK
). When a packet or frame is transmitted to the Ethernet controller,
ETHRX_DV
indicates that recovered and decoded nibbles are being transmitted on
ETHRXD[3–0]
. For a
received frame to be correctly interpreted,
ETHRX_DV
must be asserted while the value on the
ETHRXD[3–0]
is 1 or more bytes of preamble (defined as 0b01010101) followed by 1 byte of start
frame delimiter (SFD) (defined as 0b01011101). After the Ethernet controller detects SFD,
ETHRX_DV
must stay asserted until the Ethernet controller receives the last nibble of data. Figure
25-6 shows the Ethernet controller MII transmit flow in Full Duplex Mode.
25.6.2 RMII
The MSC8113 Ethernet controller RMII receive and transmit interface complies with the RMII
specification defined by the RMII consortium.
Figure 25-6. MII Receive Flow in 100 Mbps Full Duplex Mode with No Error
ETHRX_CLK
ETHRX_DV
ETHRX_ER
ETHRXD[3–0]
PRE PRE SFD SFD
DA
DA
4 Bytes
CRC
DA
DA
DA
DA
DA
DA
DA
CRC
1 or more
Bytes
Summary of Contents for MSC8113
Page 1: ...MSC8113 Reference Manual Tri Core 16 Bit Digital Signal Processor MSC8113RM Rev 0 May 2008 ...
Page 20: ...MSC8113 Reference Manual Rev 0 xx Freescale Semiconductor Contents ...
Page 28: ...MSC8113 Reference Manual Rev 0 xxviii Freescale Semiconductor ...
Page 56: ...MSC8113 Reference Manual Rev 0 1 28 Freescale Semiconductor MSC8113 Overview ...
Page 76: ...MSC8113 Reference Manual Rev 0 2 20 Freescale Semiconductor SC140 Core Overview ...
Page 134: ...MSC8113 Reference Manual Rev 0 4 30 Freescale Semiconductor System Interface Unit SIU ...
Page 168: ...MSC8113 Reference Manual Rev 0 6 18 Freescale Semiconductor Boot Program ...
Page 180: ...MSC8113 Reference Manual Rev 0 7 12 Freescale Semiconductor Clocks ...
Page 260: ...MSC8113 Reference Manual Rev 0 8 80 Freescale Semiconductor Memory Map ...
Page 300: ...MSC8113 Reference Manual Rev 0 9 40 Freescale Semiconductor Extended Core ...
Page 304: ...MSC8113 Reference Manual Rev 0 10 4 Freescale Semiconductor MQBus and M2 Memory ...
Page 308: ...MSC8113 Reference Manual Rev 0 11 4 Freescale Semiconductor SQBus ...
Page 590: ...MSC8113 Reference Manual Rev 0 17 46 Freescale Semiconductor Interrupt Processing ...
Page 614: ...MSC8113 Reference Manual Rev 0 18 24 Freescale Semiconductor Debugging ...
Page 622: ...MSC8113 Reference Manual Rev 0 19 8 Freescale Semiconductor Internal Peripheral Bus IPBus ...
Page 724: ...MSC8113 Reference Manual Rev 0 21 32 Freescale Semiconductor UART ...
Page 920: ...MSC8113 Reference Manual Rev 0 25 150 Freescale Semiconductor Ethernet Controller ...
Page 1171: ...MSC8113 Reference Manual Rev 0 Freescale Semiconductor C 61 EF wait_rts P 01077FFC 9F rts 71 ...
Page 1172: ...MSC8113 Reference Manual Rev 0 C 62 Freescale Semiconductor MSC8113 Boot Code ...
Page 1202: ...MSC8113 Reference Manual Rev 0 Index 30 Freescale Semiconductor Index ...